NASA ran into exasperating fuel leaks during a make-or-break test of its new moon rocket Monday, calling into question how soon astronauts could take off for a trip around the moon. The leaks — reminiscent of the rocket's delayed debut three years ago — sprang just a couple hours into the daylong fueling operation at

As NASA prepares to send astronauts around the moon, a critical dress rehearsal on Monday will reveal whether its rocket is truly ready to fly.

After adjusting its timeline for the last remaining tests of the Artemis II space launch system and Orion capsule because of freezing cold temperatures in Florida, NASA is now pressing ahead in preparation for launch.

A hydrogen leak at the base of NASA's Artemis II moon rocket threw a wrench into a carefully planned countdown "wet dress" rehearsal, interrupting a test intended to help clear the way toward a possible weekend launch for four astronauts on a flight around the moon.

NASA’s last major test for its moon-bound Artemis II rocket is set for Monday night, and, if successful, will open the door for America’s first astronaut mission to the moon since 1972. The so-called “wet dress rehearsal” began early Monday with fueling of the Space Launch System (SLS) rocket following days of delays due to chilly temperatures in Florida,

NASA begins Artemis II wet dress rehearsal, fueling the SLS and Orion ahead of a possible Feb. 8 launch window.

NASA began a two-day practice countdown Saturday leading up to the fueling of its new moon rocket, a crucial test that will determine when four astronauts blast off on a lunar flyby.